If a = (0,0) and b = (6,3), whats a the length of ab

Length of ab is:

3√5

Step-by-step explanation:

Distance(D) between 2 points, (x1,y1) and (x2,y2) is  given by

D=

Here we have to find the distance between the points (0,0) and (6,3)

i.e. (x1,y1)=(0,0) and (x2,y2)=(6,3)

D=

D=

D=

D=

D=3√5

Hence, Length of ab is:

3√5

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4